From: Filipe Manana <fdmanana@xxxxxxxx> commit ad3fc7946b1829213bbdbb2b9ad0d124b31ae4a7 upstream. After commit 92082d40976ed0 ("btrfs: integrate page status update for data read path into begin/end_page_read"), the 'nr' counter at btrfs_do_readpage() is no longer used, we increment it but we never read from it. So just remove it. Reviewed-by: Johannes Thumshirn <johannes.thumshirn@xxxxxxx> Signed-off-by: Filipe Manana <fdmanana@xxxxxxxx> Signed-off-by: David Sterba <dsterba@xxxxxxxx> Cc: Nathan Chancellor <nathan@xxxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- fs/btrfs/extent_io.c | 5 +---- 1 file changed, 1 insertion(+), 4 deletions(-) --- a/fs/btrfs/extent_io.c +++ b/fs/btrfs/extent_io.c @@ -3561,7 +3561,6 @@ int btrfs_do_readpage(struct page *page, u64 cur_end; struct extent_map *em; int ret = 0; - int nr = 0; size_t pg_offset = 0; size_t iosize; size_t blocksize = inode->i_sb->s_blocksize; @@ -3727,9 +3726,7 @@ int btrfs_do_readpage(struct page *page, end_bio_extent_readpage, 0, this_bio_flag, force_bio_submit); - if (!ret) { - nr++; - } else { + if (ret) { unlock_extent(tree, cur, cur + iosize - 1); end_page_read(page, false, cur, iosize); goto out; Patches currently in stable-queue which might be from fdmanana@xxxxxxxx are queue-5.15/btrfs-remove-no-longer-used-counter-when-reading-data-page.patch